frostfs-node/cmd/neofs-node/metrics.go

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package main
import (
"context"
metricsconfig "github.com/nspcc-dev/neofs-node/cmd/neofs-node/config/metrics"
httputil "github.com/nspcc-dev/neofs-node/pkg/util/http"
"github.com/prometheus/client_golang/prometheus/promhttp"
"go.uber.org/zap"
)
func initMetrics(c *cfg) {
addr := metricsconfig.Address(c.appCfg)
if addr == "" {
return
}
var prm httputil.Prm
prm.Address = addr
prm.Handler = promhttp.Handler()
srv := httputil.New(prm,
httputil.WithShutdownTimeout(
metricsconfig.ShutdownTimeout(c.appCfg),
),
)
c.workers = append(c.workers, newWorkerFromFunc(func(context.Context) {
fatalOnErr(srv.Serve())
}))
c.closers = append(c.closers, func() {
err := srv.Shutdown()
if err != nil {
c.log.Debug("could not shutdown metrics server",
zap.String("error", err.Error()),
)
}
})
}